Web Forms :: String Value In The Column Of Datatable?
Jan 27, 2010
I have string value in the column of datatable.I would like to assign seq no to different value.if they have the same value, I would like to assign the same seq no.if there isn't has the value in the column, then assign a new seq no.how to do this?for example:
district no. district
1 hong kong
2 germary
3 canada
1 hong kong
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Nov 24, 2010
I'm loading data from my database into a DataTable, and one of the columns is a date field.
[Code]....
I'd like to format that column so that instead of containing a full date, it will be formatted like "MM/DD/YYYY".
I've tried looping through each row in the table and changing the cell for that column, but I get an error saying that the string isn't a valid DateTime object.
I tried changing the column DateType to a string, but I get an error saying I can't change the DateType after the table is filled.
How can I do this? This seems like such a simple thing, but I'm having so much trouble with it.
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Apr 2, 2010
If I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
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Mar 31, 2010
i have a datatable with several columns and rows. now i want to copy the last column fully (all rows) and create the new column with that values.
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Mar 22, 2011
I am grabbing an XML feed an throwing it into a dataset. I am looping through the datatable that is in the dataset and adding a column to the datatable (Distance) that is the result of a calculation. What I then need to do is sort the dataset on the new column (Distance) I added, but it is not working... Here is a sample of my code.
[Code]....
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Feb 24, 2011
for below i dont want to use sql Query bcz data is not coming from sql/oracle database.
its comeing from propertary database and data is in datatable .
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[code]....
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Jun 17, 2010
What I have is a datatable being constructed from Sharepoint API. We dont need to worry about the sharepoint api.The code where it fills the data is as follows
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Jan 27, 2010
how can i convert the column data in datatable to integer array the column data in datatable stored as:
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Feb 10, 2011
I want to transfer data from datatable to a gridview with a hyperlink column. But dont know how to do.
I attach my code as below, what i want to do is to output 2 columns in gridview, and the first column should be a hyperlink. However, now the first column still shows nothing.
Web page code:
[Code]....
C# code:
[Code]....
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Jul 16, 2010
Below is the code behind for a simple aspx page. The web form contains one GridView (GridView1) and one label (Label1). I create a Data Table, then add a row to the table. I then DataBind my GridView to the DataTable. (so far so good) When I run the page I do see the GridView and the single row of data. However the checkbox shown is not enabled, meaning the user cannot uncheck or check it. (As if was not enabled)
Imports System.Data.SqlClient
Imports System.Data
PartialClass test
Inherits System.Web.UI.Page
ProtectedSub Page_Load(ByVal senderAsObject,ByVal eAs System.EventArgs)HandlesMe.Load
CreateDT()
EndSub
PrivateSub CreateDT()
Dim dtAsNew DataTable
Dim col1AsNew DataColumn
[code]...
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Jan 11, 2010
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[Code]....
this is the code behaind:
[Code]....
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Feb 23, 2010
How to create Rows and Column using Datatable Gridview Itemtemplate with multi header I need to create Datatable Gridview Itemtemplate fixed rows and column such as 7 rows and 7 columns
[Code]....
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Jun 24, 2010
How do I get the column header of a datatable in a gridview which is displayed in a gridview I created. I need to get it so that I can use it as comparison.
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Feb 27, 2010
This is my datatable
[Code]....
I want to localize the columns names. Can you tell me how can I do this? I localized my .aspx pages, but I don't know how to localize the text in .cs files.
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Mar 3, 2011
I have a dataTable filled with data.
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Sep 20, 2010
I am trying to update a coulmn in datatable but keep getting error:
Input string was not in a correct format.Couldn't store < > in SortOrder Column. Expected type is Int32.
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[Code]....
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Feb 26, 2010
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Sep 21, 2010
I have a datatable dt with 4 columns. I want to retrieve only distinct values from column1 of datatable.
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Jun 21, 2010
How do you add an extra column in a datatable which will be used for another query
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Dec 24, 2010
i have list box, in that list box have some fields(SQL Table fields) in run time i arrange the fields(based on my requirement order) , based on the list i want to change the columns in data table dynamicaly. how i change the columns in the datatable.
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Dec 27, 2010
i have a sum column in my datatable and want to add the values?
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Nov 12, 2010
using vb.net 2005.
I'm trying to a byte array column to a table but getting an exception:
<error>
datatype argument cannot be null
</error>
The code I have is:
[Code]....
Does anyone know the correct syntax for this?
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Nov 14, 2010
I have a Datatable store in the Session. This Datatable has a column call Qty. I have one button on the page that will update the Qty. How can I update my DataTable Qty column?
[Code]....
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Jul 26, 2010
I have a DataSet comprised of two DataTables. One of the DataTables is further comprised of the results of two different SQL calls. I need to alphabetize the results of those SQL calls. After the seconds set of results is added to the DataTable I tried the following but the end result (displayed on the page) did not alphabetize the returned results. There was no error. Can anyone advise me please. 'programs' is the DataTable name, title is the column name.
programs.DefaultView.Sort = "Title ASC";
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Nov 4, 2010
I am getting a datatable from the SQL Server. In SQL Server the column headers are fine (mix of Capital and Small Letters). But when i am getting it in the front end, all the column names are in lower case. How can i get the column names in original Case.
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